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GRAPHEN-BASIERTE PRÄKURSORSTRUKTUREN

Resumen de: DE102025133805A1

Verfahren zur Erhöhung der Porosität von Graphen-basierten Präkursoren, umfassend ein Befeuchten der Graphen-basierten Präkursoren mit Wasser, ein schnelles Einfrieren der Graphen-basierten Präkursoren nach dem Befeuchtungsschritt, um eine Ausdehnung eines Wasservolumens innerhalb der Graphen-basierten Präkursoren zu bewirken, um Defekte innerhalb der Graphen-basierten Präkursoren zu verursachen, und ein Auftauen und Entfernen des Wassers von den Graphen-basierten Präkursoren.

Ansteuern eines Kompressors eines Brennstoffzellensystems sowie Fahrzeug

Resumen de: DE102024123758A1

Die Erfindung betritt ein Verfahren zum Ansteuern, insbesondere Einregeln, eines Kompressors (K) eines Brennstoffzellensystems (BZS), der sowohl mittels einer Vorgabe eines Drehzahlparameters (ω̇) als auch über eine Vorgabe eines Drehmomentparameters (iq) ansteuerbar, insbesondere einregelbar, ist, wobei bei dem Verfahren (a) bei Eintritt eines Lastabwurfs der Drehmomentparameter (iq) auf ein Soll-Drehmoment von null eingestellt wird und (b) sobald ein Drehzahlparameter (ω) auf einen vorgegebenen Schwellwert (ωthr) abgesunken ist, der Kompressor (K) über die Vorgabe des Drehmomentparameters (iq) geregelt wird. Die Erfindung betritt auch ein Fahrzeug (FCEV) mit einem Brennstoffzellensystem (BZS), wobei das Fahrzeug (FCEV) dazu eingerichtet ist, das Verfahren ablaufen zu lassen.

Bipolarplatte und elektrochemische Einheit

Resumen de: DE102024124361A1

Um eine Bipolarplatte (100) für eine elektrochemische Einheit bereitzustellen, durch die ein optimiertes Zu- und Abführen eines fluiden Mediums zu und von einer Membran-Elektroden-Einheit erreicht ist, wird vorgeschlagen, dass diese wenigstens einen Plattenkörper (102) umfasst, an dem eine Vielzahl Strömungskanäle vorgesehen sind, die wenigstens ein Strömungsfeld (104) für ein fluides Medium bilden, wenigstens eine Medienzuführung (106) zum Zuführen und/oder wenigstens eine Medienabführung (108) zum Abführen des fluiden Mediums ausgebildet ist, und wenigstens ein Dichtsteg (110) vorgesehen ist, der das Strömungsfeld (104), die wenigstens eine Medienzuführung (106) und/oder die wenigstens eine Medienabführung (108) zumindest abschnittsweise begrenzt und der eine erste Stegseitenwand (118) und eine zweite Stegseitenwand (120) aufweist, wobei wenigstens eine der Stegseitenwände (118, 120) bezüglich einer Haupterstreckungsebene (122) des Plattenkörpers (102) zumindest abschnittsweise verschiedene Neigungswinkel (N) aufweist und/oder die Stegseitenwände (118, 120) zumindest abschnittsweise voneinander abweichende Neigungswinkel (N) aufweisen.

ANION EXCHANGE POLYMER COMPRISING 4-X-QUINUCLIDINIUM STRUCTURE, METHOD FOR PREPARING SAME, AND ANION EXCHANGE MEMBRANE COMPRISING SAME

Resumen de: WO2026042947A1

An anion exchange polymer according to a preferred embodiment of the present invention includes a 4-X-quinuclidinium structure in which carbon corresponding to position 4 of a quinuclidinium ring is connected to a polymer main chain (X), and due to the absence of β-hydrogen placed in an anti-periplanar conformation with a nitrogen atom in the quinuclidinium ring, a Hoffmann elimination reaction does not occur. Therefore, there is the effect of having a chemically stable structure in a basic driving environment.

SEPARATOR FOR FUEL CELL

Resumen de: US20260058169A1

A separator for a fuel cell includes a plate-shaped body including multiple ribs extending in parallel. The ribs protrude from the body to come into contact with a gas diffusion layer of a membrane electrode gas diffusion layer assembly. Spaces between the ribs and between the body and the gas diffusion layer form passages through which gas is supplied to and discharged from the membrane electrode gas diffusion layer assembly. The ribs include dividing portions that divide the passages extending in parallel. Each dividing portion divides the corresponding passage into sections on upstream and downstream sides in a gas flow direction. The positions of the dividing portions in the gas flow direction of the passages are set to be different between adjacent ones of the passages in a direction in which the ribs are arranged in parallel.

ACTIVE STACK COMPRESSION CONTROL SYSTEM

Resumen de: US20260058182A1

A fuel cell stack compression system includes a tie rod configured to extend along a length of a fuel cell stack to compress the fuel cell stack when the tie rod is subjected to a tensile force, a bellows coupled to and configured to provide the tensile force on the tie rod, a strain gauge configured to measure the strain on the tie rod or on a component coupling the tie rod to the bellows, and a controller. The controller is configured to receive strain gauge measurements from the strain gauge and control pressure in the bellows to adjust the tensile force on the tie rod.

STATIC REDOX BATTERY AND ENERGY STORAGE SYSTEM COMPRISING SAME

Resumen de: US20260058180A1

A static redox battery includes: a membrane having an ion permeation property; a positive electrode electrolyte storage cell module positioned on one side of the membrane; a negative electrode electrolyte storage cell module positioned on the other side of the membrane; and a pair of bipolar plates positioned on outermost sides of the positive electrode electrolyte storage cell module and the negative electrode electrolyte storage cell module. Each of the positive electrode electrolyte storage cell module and the negative electrode electrolyte storage cell module includes a plurality of felt electrodes storing an electrolyte, and a plurality of perforated support plates positioned between the plurality of felt electrodes.

FUEL CELL

Resumen de: US20260058183A1

A fuel cell includes a fuel cell stack including stacked plate-shaped single cells. The fuel cell includes two end plates that sandwich the fuel cell stack from opposite sides of the fuel cell stack in a stacking direction of the single cells. The fuel cell includes fasteners each rotating about a respective first axis and fastening the two end plates to each other. The respective first axis extends in the stacking direction. The fuel cell includes one rotor configured to rotate about a second axis extending in the stacking direction and provided on an outer surface of one of the two end plates in the stacking direction. The one rotor is configured such that a rotational force generated when the one rotor is rotated is simultaneously transmitted to the fasteners as a rotational force acting in a direction of tightening the fasteners.

MEMBRANE-ELECTRODE ASSEMBLY AND METHOD FOR MANUFACTURING THE SAME

Resumen de: US20260058179A1

A membrane-electrode assembly and a method for manufacturing the same are provided. The membrane-electrode assembly includes a pattern layer formed between a separator and a subgasket through a UV curing process.

AUTOMATED STACK MANUFACTURING METHOD AND SYSTEM

Resumen de: US20260058181A1

Proposed are an automated stack manufacturing method and system, according to which each plate forming a stack is automatically manufactured and held, and individual plates are sequentially placed on a moving part and stacked to be connected to manufacture the stack, thereby improving stack production efficiency.

Brennstoffzellenvorrichtung

Resumen de: DE102024123738A1

Die vorliegende Erfindung betrifft eine Brennstoffzellenvorrichtung (1) mit einem Stapel (2) aus mehreren aufeinandergestapelten Brennstoffzellen (3) zum Erzeugen elektrischer Energie, die jeweils eine Anodenseite und eine davon durch einen Elektrolyten abgetrennte Kathodenseite aufweisen, mit einem von einem Kathodenzuluftstrom (6) aus Kathodenzuluft durchströmbaren Einlasskanal (7), der mit den Kathodenseiten fluidisch verbunden und dadurch der Kathodenzuluftstrom (6) zu den Kathodenseiten hinführbar ist, mit einem von einem Kathodenabluftstrom (8) aus Kathodenabluft durchströmbaren Auslasskanal (9), der mit den Kathodenseiten fluidisch verbunden und dadurch der Kathodenabluftstrom (8) von den Kathodenseiten wegführbar ist, mit einer in die Brennstoffzellenvorrichtung (1) integrierten Absperreinrichtung (10) zum fluiddichten Absperren des Einlasskanals (7) und des Auslasskanals (9). Wesentlich ist, dass der Einlasskanal (7) und der Auslasskanal (9) durch eine lineare und/oder rotatorische Stellbewegung (11a, 11b) der Absperreinrichtung (10) fluiddicht absperrbar sind. Die Erfindung betrifft ferner eine Endplattenbaugruppe für eine Brennstoffzellenvorrichtung (1).

Filter, elektrochemische Zellenvorrichtung, Verfahren

Resumen de: DE102024208040A1

Die Erfindung betrifft einen Filter (100) zur Reinigung eines Fluids, insbesondere für die Verwendung in elektrochemischen Zellenvorrichtungen (10), bevorzugt Brennstoffzellenvorrichtungen (10), wobei der Filter (100) eine erste Zone (118) und eine zweite Zone (120) aufweist, wobei die zweite Zone (120) in einer Strömungsrichtung des Fluids nach der ersten Zone (118) angeordnet ist, wobei in der zweiten Zone (120) Chromschutzmaterial (110) angeordnet ist, welches zur Bindung von Chrom vorgesehen ist.Es wird vorgeschlagen, dass in der ersten Zone (118) ein Schwefelschutzmaterial (108) angeordnet ist, welches zur Bindung von Schwefel vorgesehen ist.

Steuerung und Verfahren zum Überwachen des Öffnens eines mechanischen Druckentlastungsventils (PRV)

Resumen de: DE102025132513A1

Das Wasserstoffversorgungssystem 100 umfasst mindestens einen Wasserstofftank 102, 104, der über den Druckregler 106 fluidisch mit einem Kraftstoffrail 114 verbunden ist. Das Kraftstoffrail 114 ist ferner mit mindestens einem Kraftstoffinjektor 116 zur Förderung von Wasserstoff verbunden. Die Steuerung 110 ist dazu eingerichtet, unter Verwendung eines Drucksensors 112 den Druck des Wasserstoffs in dem Kraftstoffrail 114 zu überwachen, dadurch gekennzeichnet, dass die Steuerung 110 dazu eingerichtet ist, aus dem vom Drucksensor 112 gemessenen Druck einen Druckgradienten zu berechnen. Die Steuerung 110 vergleicht dann den Druckgradienten mit einem Schwellengradienten und erhält ein Ergebnis. Die Steuerung 110 detektiert dann auf der Basis des Ergebnisses einen Öffnungszustand des PRV 108. Die Förderung von Wasserstoff erfolgt in den Brennraum des Motors des Fahrzeugs mit Verbrennungsmotor oder des Fahrzeugs mit Brennstoffzelle. Der Status des PRV 108 und die Anzahl der Öffnungszustände während des Fahrzeugbetriebs werden überwacht.

VERFAHREN ZUM BETRIEB EINES BRENNSTOFFZELLENSYSTEMS UND BRENNSTOFFZELLENSYSTEM FÜR EIN KRAFTFAHRZEUG

Resumen de: DE102024208080A1

Die vorliegende Entwicklung betrifft ein Verfahren zum Betrieb eines Brennstoffzellensystems sowie ein dementsprechendes Brennstoffzellensystem umfassend:- eine Brennstoffzelle (20),- einen in die Brennstoffzelle (20) mündenden Versorgungsstrang (41) zur Zufuhr von Luft,- einen vom Versorgungsstrang (41) abzweigenden Bypass (45), welcher in einen Auslass (48) mündet, der zur Brennstoffzelle (20) gerichtet ist.

ELECTROLYTE TANK OF A REDOX FLOW BATTERY HAVING A PIPE ASSEMBLY

Resumen de: WO2026041608A1

In order to detect leakages of an electrolyte in a redox flow battery at an early stage and also without a corresponding leakage sensor system and in order to interrupt a siphon effect which is produced, it is proposed that a pipe assembly (50) is arranged in the electrolyte tank (13a, 13b), which pipe assembly comprises at least two pipes (51, 52, 61, 62) of different lengths, wherein each of the at least two pipes (51, 52, 61, 62) has a first axial end (51-1, 52-1, 61-1, 62-1) and a second axial end (51-2, 52-2, 61-2, 62-2), which are connected to one another in each case by a flow volume (53, 54, 63, 64), wherein the first axial ends (51-1, 52-1, 61-1, 62-1) are open and end in the electrolyte tank (13a, 13b) at different depths (T1, T2, T3, T4), wherein the second ends (51-2, 52-2, 61-2, 62-2), opposite the first axial ends (51-1, 52-1, 61-1, 62-1), of the at least two pipes (51, 52, 61, 62) open into a mixing volume (56) in a connection pipe (55), wherein the flow volumes (53, 54, 63, 64) of the at least two pipes (51, 52, 61, 62) are connected to one another via the mixing volume (56) and wherein the mixing volume (56) is located above the fill level (LVa, LVb) of the electrolyte (15a, 15b) when the electrolyte tank (13a, 13b) is used.

AROMATIC COMPOUNDS IN LOW CONDUCTIVE HEAT-TRANSFER FLUIDS

Resumen de: WO2026041748A1

The present invention relates to heat-transfer fluids comprising azole-type corrosion inhibitors alongside specific aromatic compounds according to formula (I) and having a pKa of less than 9.0 which act as protecting agents when the heat-transfer fluid is placed in contact with ion-exchange resins, thereby preventing the uptake of desired additives like corrosion inhibitors. The invention further relates to associated methods, compositions and uses.

CONTROL OF A COMPRESSOR OF A FUEL CELL SYSTEM, AND VEHICLE

Resumen de: WO2026041518A1

The invention relates to a method for controlling, in particular adjusting, a compressor (K) of a fuel cell system (BZS), which compressor can be controlled, in particular adjusted, both by specifying a speed parameter (ω) and by specifying a torque parameter (iq), wherein, in the method, (a) when a load shedding occurs, the torque parameter (iq) is set to a target torque of zero, and (b) as soon as a speed parameter (ω) has fallen to a specified threshold value (ωthr), the compressor (K) is regulated via the specification of the torque parameter (iq). The invention also relates to a vehicle (FCEV) comprising a fuel cell system (BZS), wherein the vehicle (FCEV) is designed to carry out the method.

BIPOLAR PLATE FOR AN ELECTROCHEMICAL DEVICE

Resumen de: WO2026041504A1

The invention relates to a bipolar plate for an electrochemical unit of an electrochemical device, wherein the bipolar plate comprises at least one reactant gas passage opening, an electrochemically active region, and at least one reactant gas distribution region, and the electrochemically active region and/or the reactant gas distribution region comprises at least one primary flow channel through which the reactant gas can flow and which is fluidically connected to at least one secondary flow channel of a first type and at least one secondary flow channel of a second type via a distribution portion comprising one or more transition channels. The aim of the invention is to provide such a bipolar plate in which the flow of reactant gas is distributed to the secondary flow channels as evenly as possible during the operation of the electrochemical device. This is achieved in that the at least one transition channel comprises at least one deflecting device for deflecting a part of the flow of the reactant gas towards a secondary flow channel of the first type associated with the same transition channel and/or the at least one transition channel comprises at least one deflecting device for deflecting a part of the flow of the reactant gas towards a secondary flow channel of the first type associated with another transition channel.

A MONOLITHIC SOLID OXIDE CELL UNIT COMPRISING A TRIPLY PERIODIC MINIMAL SURFACE (TPMS) STRUCTURE

Resumen de: WO2026041604A1

Disclosed is a monolithic solid oxide cell unit (2) comprising an inner wall part (3) shaped as a Triply Periodic Minimal Surface, TPMS, in order to divide the space within the monolithic solid oxide cell unit into at least two disjoint sub-volumes providing an anodic sub-volume and a cathodic sub-volume, the inner wall part (3) being formed in a material composition that provides an electrolytic separation between the anodic sub-volume and the cathodic sub-volume. The monolithic solid oxide cell unit comprises an outer wall part (4) connected to and at least partly enclosing the inner wall part (3) with the anodic sub-volume side of the inner wall part and the outer wall-part forming an anodic gas channel having an inlet (16) and an outlet, and the cathodic sub-volume side of the inner wall part and the outer wall-part forming a cathodic gas channel having an inlet and an outlet (18).

HUMIDIFIER FOR A FUEL CELL

Resumen de: WO2026041543A1

The invention relates to a humidifier (1) for a fuel cell, comprising a housing (3) with a first inlet opening (4), a second inlet opening (5), a first outlet opening (6) and a second outlet opening (7), wherein a channel (8) is assigned to the second inlet opening (5), wherein the channel (8) is tubular and perforated along the circumferential wall (2), wherein a membrane element (9) comprising hollow fibres is positioned concentrically around the channel (8) between the channel (8) and the second outlet opening (7), wherein the membrane elements (9) are designed in such a way that fuel cell feed air to be humidified can flow through the inside of the hollow fibres and that humidifier air can flow around the outside of the hollow fibres, wherein the channel (8) is flow-conductingly connected to a third outlet opening (10), wherein the humidifier is designed in such a way that fuel cell feed air to be humidified can flow into the humidifier (1) via the first inlet opening (4), flow through the inside of the hollow fibres of the membrane element (9) and flow out via the first outlet opening (6), and that the humidifier air can flow into the end of the channel (8) via the second inlet opening (5), and that a first partial volume flow of the humidifier air can exit via the circumference radially out of the channel (8), flow around the outside of the hollow fibres of the membrane element (9) and flow out of the humidifier (1) via the second outlet opening (7), and that a second p

FUEL CELL SYSTEM, METHOD FOR OPERATING A FUEL CELL SYSTEM, COMPUTER PROGRAM PRODUCT, AND CONTROL UNIT

Resumen de: WO2026041448A1

The invention relates to a fuel cell system (100) having a plurality of fuel cell stacks (101), wherein the fuel cell stacks (101) are designed with different types of anode systems (20) which have different recirculation capabilities with regard to fuel recirculation.

METHOD FOR INERTING A FUEL CELL SYSTEM

Resumen de: WO2026041368A1

The invention relates to a method for removing fuel from a fuel cell (6), comprising: A) fluidically connecting an inert gas source (12) to the fuel cell (6); B) feeding an inert gas (13) from the inert gas source (12) into the fuel cell (6); and C) discharging a gas mixture (19) containing inert gas (13) and fuel gas (11) from the fuel cell (6). Steps B) and C) are carried out and/or repeated until the concentration of the fuel gas (11) in the fuel cell (6) falls below a specified fuel gas concentration limit value.

METHOD FOR OPERATING A FUEL CELL SYSTEM, CONTROL DEVICE

Resumen de: WO2026041367A1

The invention relates to a method for operating a fuel cell system (1), in which at least one fuel cell (101) is supplied with hydrogen from a tank (21) and recirculated hydrogen from a recirculation circuit (50) via a fuel line (20) as an anode gas, wherein the flow in the recirculation circuit (50) is a passive recirculation which is effected by a jet pump (52) in the fuel line (20). The minimum fuel cell power is adapted depending on a temperature of the hydrogen. The invention also relates to a control device (27) for carrying out the method or individual method steps.

FLOW FRAME UNIT FOR AN ELECTROCHEMICAL CELL OF A REDOX FLOW BATTERY, AND CELL STACK

Resumen de: WO2026041340A1

The invention relates to a flow frame unit (12) for a redox flow battery and to a cell stack (10) comprising at least two flow frame units (12).

AN ELECTROLYSER SYSTEM AND METHOD FOR OPERATING AN ELECTROLYSER SYSTEM

Nº publicación: AU2024333388A1 26/02/2026

Solicitante:

VOLT GROUP LTD
VOLT GROUP LIMITED

Resumen de: AU2024333388A1

An electrolyser system (400) comprises at least one electrolyser (460) and has an operating energy requirement generated by an energy source (27). The energy source (27) includes waste heat generated by an industrial process whether involving combustion or an exothermic chemical reaction. The electrolyser system (400) further comprises a waste heat to power system (70) for recovering heat from the industrial process to produce electricity for supply to the at least one electrolyser (460); and a heat exchange system (407) for recovering heat from the industrial process and enabling transfer of said recovered heat to the at least one electrolyser (460) as thermal energy. The electrolyser system (400) has substantially higher energy efficiency and lower cost than an electrolyser system operated using an intermittent renewable energy source.